The GOOD FISH/BAD FISH tool
for saltwater aquariums

Yellow Tang

Solid yellow; enlarged dorsal and anal fins that can be flared to give a sail-like appearance; somewhat elongated snout and mouth. Until recently, all Yellow Tangs hailed from Hawaii?s reefs where their abundance has been severely depleted for the aquarium hobby. It... Read More

Barbour’s Seahorse

White, tan, or pale yellow; stripes on snout and radiating from eyes; well-developed spines. Seahorses require specialized care from knowledgeable and experienced fish keepers and are not suitable for novices. Social and best kept in groups in dedicated sea horse only... Read More

Big-Belly Seahorse

Variable mottled colors including white, tan, brown, yellow and olive green; some with dark spots and blotches. Males with prominent white brood pouch. A cold-water species that may reach 12?. They require a very tall/large tank and a chiller. Suitable only for... Read More

Brazilian Seahorse

Variable colors; often with many brown spots and tiny white dots, especially on tail; long, thick snout; narrow body. A delicate species for experienced seahorse keepers only. The Brazilian Seahorse may be on the brink of extinction in the wild. Like all captive-bred... Read More

Common Seahorse

Black; tan/sandy; white/creamy with spots; pale yellow with spots; smooth body; no spines; thick snout. Seahorses require specialized care from knowledgeable and experienced fish keepers and are not suitable for novices. Social and best kept in groups in dedicated sea... Read More